New observations of the planets orbiting around the Trappist-1 star, described it as a "holy grail" discovery – which caused a stir when scientists found a whole set of Earth-like worlds circling it last year – show more detailed in...

Our solar system contains a very large main asteroid belt between Mars and Jupiter, an orbiting mass of tens of thousands of rocky fragments that have orbited the Sun for billions of years. Within the belt there are some larger obje...

Ceres, which orbits the Sun in the asteroid belt between Mars and Jupiter, is a unique body in the Solar System, bearing many similarities to Jupiter's moon Europa and Saturn's moon Enceladus, both considered to be potential sources...

Astronomers think they've detected a rock coming from a distant solar system for the first time.
The extreme nature of the object's orbit suggests it hails from another star.
But some scientists think the asteroid or comet, called A...